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(No Model.) 2 SheetsSheet i. J. C. TUNNICLIPF.

UORN PLANTER. No. 325,638. Patented Sept. 1, 1885.

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(No Model.) I 2 Sheets-Sheet 2.

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- CORN PLANT BR. No. 325,638. Patented Sept. 1, 1885.

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UNITED STATES PATENT Urrrcn.

JOHN G. TUNNICLIFF, OF GALESBURG, ILLINOIS, ASSIGNOR 'Ii) GEORGE IV. BRONVN & COMPANY, OF SAME PLACE.

CORN-PLANTER.

SPECIFICATION forming part of Letters Patent No. 325,638, dated. September 1, 1885.

Application filed June 26, 1885. {No model.)

To aZZ whom it may concern:

' Be it known that 1, Joan O. Tnnnromrr,

a citizen of the United States, residing at Galesburg, in the county of Knox and State 5 of Illinois, have invented certain new and useful Improvements in Corn-Planters, of which the following is a specification.

This invention relates to an improvement in corn-planters of that kind or type in which a forward intermitting rotary motion is given to the seed-cup wheel by a slide having pawls pivoted or hinged thereto in such manner that said pawls have arising and falling movement to adapt them for operation on the ratchettoothed upper face of the seed-cup wheel.

In mechanisms of this type as made previously to my invention, in order to arrest the movement of the seed-wheel and hold or lock it at the termination of each throw of the seed slide-bar, either projections from said slide-bar or some part of the seed-box are or were used or the pawls which actuated the seed-wheel are or were made of some special form or construction to adapt them for arrest- 5 ing the movement of the seed-wheel and for looking it in position while the slide bar was at rest at either end of its throw; and a main object of my invention is to furnish a seed wheel of such construction that pawls with the ordinary single lug projecting from their lower sides may be readily adapted to give the seed-wheel the ordinary forward intermitting rotary motion; also to arrest the movement of the seed-wheel and lock said wheel at the 5 termination of each throw of the slidebar; and, also, when the slide-bar is stopped atless than such throw as will give a full movement to the seed-wheel and is then given a reverse movement, it will give the seed-wheel a reverse movement, and thereby restore it to a proper position for the full action of the slide at its next throw.

In mechanism of thistype having the hinged vertically-swinging pawls, as heretofore con- 5 structed, it has also been customary to have the pawls entirely independent of each other in their movements; and another main feature in my invention consists in connecting the two pawls which actuate each seed-wheel, or forming them integral, in such manner that when the acting end of either pawl is raised in passing up the inclined surface in its path on the seed-wheel the other pawl, which is at the time moving the seed-wheel, will thereby be pressed or forced into closer and more secure engagement with said wheel. Thislast-named feature of the integral pawls, it will be understood, is not indispensably essential to the operation of my seed-wheel, as they may be operated by pawls not integral and not moved yertically each by the other, as I have described; but I prefer to use the integral pawls wit-h my seed wheels, and such pawls are preferable also with seed-wheels of other construction.

My invention further consists in constructions and combinations hereinafter described and claimed.

As my invention relates wholly to the seedwheel and the means for actuating the same, I need show and explain only these parts of a corn-planter and a portion of such other parts as are immediately associated therewith.

In the accompanying drawings, which illustrate these parts only of a corn-planter, Figure 1 is a top plan, the slide-bar shown at one end of its stroke or throw; Fig. 2, a top plan, the slide-bar shown at half-throw; Fig. 3, also a top plan, the slide-bar shown at the other end of its throw from that shown at Fig. I. Fig. 4 is a sectional elevation in the linear in Fig. 2. Fig. 5 is a sectional elevation in the line y 3 in Fig. 1. Figs. 6, 7, and S are modifications, hereinafter referred to, Fig. '7 being a sectional elevation in line a: x in Fig. 6.

In the several figures I have designated the same part by the same letter.

Letter A represents the bottom part of the seed-box at the left-hand side of a two-row corn-planter; B, one end of the slide-bar, which extends from one seed-box to the other, and which is reciprocated lengthwise to give motion to the seed-wheels, one at each of its ends; 0, the ordinary lower valve or seed tube valve, the upper end of which rests in a recess in the slide-bar B, by which this valve is operated; D, the seed-wheel, journaled in any ordinary manner above the bottom A, and

provided with ordinary orifices or seed-cups, E, which pass successionallyover the throat or opcningf to the seed-tube.

Exterior to and concentric with the seedcups E is another series of holes or orifices,G. There are two holes E to each hole G. One side, g, of each hole G is vertical, and at the other side of each of said holes the seed-wheel is cut away to form an incline, g, which rises as it approaches the next hole G, as shown plainest at Fig. 5.

Exterior to the holes G a flange, H, extends upwardly from the seed-wheel. The flange H is bent or curved inwardly to form ashoulder, h, nearly in rear of each hole G, and thence extends rearwardly to a point at or near the outer side of the next hole G in rear, that side of each hole G which is in rear in the rotation of theseed-wheel being termed the rear side. The main feature of that part of my invention which relates to the construction of the seed wheel has reference to this flange H, and particularly to the fact that each section of said flange extending from one hole G to another is an arc of a greater curve than the circumference of the seed-wheed; or, in other words, the flange H is slightly flattened between each two of the holes G, and is not the are of a circle struck from the center of the seed-wheel, as will be plainly seen on comparing this flange with the dotted line a at Fig. 3.

I is an arm rigidly attached to and extending laterally from the bar B.

J J are pawls, preferably formed, as shown at Figs. 1 to 5, both inclusive, connected to each other or integral in a horseshoe form, and hinged or journaled by a bolt, is, to the outer end of the arm I in such manner that they may be oscillated laterally on the bolt 70, as shown by dotted lines at Fig. 4. Each pawl J J is bent downwardly at its outer end to form simple lugs jj, respectively.

In describing the operation, I will suppose the slide-bar B to have made a full throw toward the right-hand, as indicated by the direction of the arrow a at Fig. 1, and to have thereby brought the seed-wheel into the position shown at same figure, and into position to drop a charge of seed in the ordinary manner. While in this position the lug j will rest against one of the shoulders h, and the lug j will rest against the vertical side g of one of the seed-holes, and thereby lock the seedwheel or prevent it being turned in either direction while the slide-bar is at rest. As the slide is now moved from the position shown at Fig. 1 in the direction shown by the arrow 6 at Fig. 2 the pawl J will act on one of the sides 9 of a hole G, and thereby give motion to the seed-wheel in the direction shown by the arrow 8 until the parts reach the respective positions shown at Fig. 3, when one of the shoulders it will come in contact with the lug j, and thereby arrest the movement of the seed-wheel and said contact, and the contact at the same timeof the lugj with the vertical side of one of the holes G will again lock the seed-wheel against movement in either direction while the slide-bar is at rest.

At Fig. 2 the slide-bar is shown as having made a partial throw in the direction of the arrow b in order to illustrate the manner in which one pawl slides up one of the inclines 9 while the other pawl is moving the seedwheel. It will also be seen by reference to the same figure that if the slide-bar were stopped at a partial throw, as shown, and its motion reversed the lug would engage with the adjacentshoulder h and thereby reverse the motion of the seed-wheel and bring it back to a proper position for receiving and being actuated by the next forward movement of the slide-bar.

\Vhile I prefer to have the shoulders h in the flange H, they may be dispensed with and the flange made to lock the seedwheel without them. If the flange H were a circle, the seed-wheel could not be locked by it. As will be plainly seen by the dotted linen at Fig. 3, the seed-wheel could not be rotated in the direction of the arrow 8 while the slide-bar and pawls were at rest in the positions shown at same figure; but if the flange H is flattened or straightened between the holes G, as shown, then the flange would come in contact with the lugj and prevent rotating the seed-wheel, even if the shoulders h were omitted by continuing the flange to the outer side of each hole G, as shown by the line r, projecting or extending one of said flanges adjacent to the hole G at Fig. 2. Hence I do not limit my claim for this feature to a flange having the shoulders h.

XVhile I prefer the pawls J J made integral, as shown, and herein described, so that raising one will hold the other down, and so that they will be held firmly against any lat eral deflection or movement independent of each other, still I have shown at Figs. 6, 7, and 8 modified forms which would operate my seed-wheel and which would have no practical movement laterally and independently of each other. At Figs. 6 and 7 pawls P are shown with flattened ends 1) seated in elongated mortises p in a cross-head (1 on a slide bar Q, and at Fig. 8 pawls R are shown with rounded ends seated in similar holes in an arm projecting from a slide-bar.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a corn-planter of the type herein referred to, in combination, a slide-bar, two pawls hinged thereto and each provided with a single lug at its end, anda seed-wheel having holes G, inclines g, and a flange, H, flattened or straightened between the holes G, substantially as and for the purpose specified.

2. In a corn-planter, in combination, slidebar B, pawls J J, and seed-wheel D, with holes G, inclines g, and flanges H, having shoulders It, substantially as and for the purpose specified.

3. In a corn planter, in combination, a slidebar, two pawls hinged thereto, and a seed-wheel having holes G, inclines g, and a flange, H, flattened or straightened between the holes G, substantially as and for the purpose specified.

4. In a corn-planter, in combination with a seed-wheel having holes G and inclines g, pawls J J, formed integral or connected together, substantially as and for the purpose specified.

5. In a corn-planter, in combination, a seedwheel having holes G, inclines g, and flanges H, flattened between the holes G, and a slidebar to which are hinged pawls connected rigidly with each other, substantially as and for the purpose specified.

6. In a corn-planter, in combination, aseedwheel having holes G, inclines g, and flanges H, flattened, as described, between the holes G, and provided with shoulders 72 anda slidebar to which are hinged pawls J J, substantially as and for the purpose specified.

7. A seed-wheel-aetuating device, consisting of two pawls rigidly connected with each other and hinged to the slide-bar or a projec tion therefrom in such-manner that raising one pawl will depress the other, substantially as described, and for thepurpose specified.

8. In a corn-planter, in combination, slidebar B, pawls J J, and seed-wheel D, with holes G, inclines g, and flanges H, either fiattened as described or made circular, having shoulders h, substantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN C. TUNNIOLIFF.

Vitnesses:

JAMES E. BROWN, I. S. Pnnnms. 

